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If 8 workers can build a wall in 3 hours,how many workers would be required to build the same wall in 2 hours? |
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Answer» one worker takes three HOURS to build a wall then start by asking how long will it take one worker to build five walls, this can be achieved with simple multiplication:5 x 3 = 15 hoursAssuming both workers can build at the same pace then it should take half the time with two workers BUILDING the walls, THEREFORE divide the above RESULT by 2 to determine the total time required:15 ÷ 2 = 7.5 hours |
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